Inventor
Tuneo Kishi
Inventor
Hitachi, JP
Overview
Patents· 8 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
H01Hprimary
H01HElectric switches80%
H02BBoards, substations or switching arrangements for the supply or distribution of electric power10%
Y10TTechnical subjects covered by former us classification10%
PatentTitleYear
5,298,703'Gas circuit breaker'19944,417,111'Three-phase combined type circuit breaker'19834,315,119'Tank type gas circuit breaker'19824,307,273'Gas blast circuit breaker'19814,293,749'Puffer type gas circuit breaker'19814,215,256'Gas-insulated switchgear apparatus'19804,009,458'Puffer type gas circuit breaker'19773,943,777'Operating apparatus for circuit breaker'1976Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1976–1994Patents assigned to HITACHI LTD (8)· patent assignee history
1976–1994Based in Hitachi, JP· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| HITACHI LTD | 8 | 1976–1994 |
Locations
| Location | Patents | Span |
|---|---|---|
| Hitachi, JP | 8 | 1976–1994 |